Lavantros, Angelic Scriptor

Commision-Angelic— If you spend only white and
blue mana to cast this spell, angel creatures get
+1/+2.
Flying
When Lavantros enters the battlefield, choose one:
•Angel creatures get +1/+1 and have Haste.
•Blue and White creatures have First Strike.
"They say 'History is always written by the winners.'
I will be a winnner."